replications supported by open-e software

Software Version: DSS ver. 6.00 up85

Presentation updated: September 2011

Replication Solutions with Open-E Data Storage Server

(DSS V6)

http://www.open-e.com/�

http://www.open-e.com/products/open-e-dss-v6/�



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Replication Solutions Supported by Open-E DSS

Replication Mode Source/Destination Data Transfer Volume Type

Sync

hron

ous

Asyn

chro

nous

w/ S

yste

m

LAN

WAN

File

base

d

Bloc

k bas

ed

NAS

iSCSI

FC

File-

IO

Bloc

k-IO

Asynchronous Data (File) Replication within the system

Asynchronous Data (File) Replication over a LAN

Asynchronous Data (File) Replication over a WAN

Synchronous Volume Replication over a LAN

Synchronous Volume Replication over a WAN



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Open-E DSS supports three different types of file based Data (File) Replication • Asynchronous Data (File) Replication within the system • Asynchronous Data (File) Replication over a LAN • Asynchronous Data (File) Replication over a WAN

Additionally, DSS Supports two types of block based Volume Replication, • Synchronous Volume Replication over a LAN for NAS, iSCSI and Fibre Channel appliances, • Synchronous Volume Replication over a WAN for NAS, iSCSI and Fibre Channel appliances,




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Data (File) Replications



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Open-E Data (File) Replication enables asynchronous file and folder copy from one storage system to another for maximum data availability.

• With Asynchronous Replication a point-in-time snapshot copy of data on the source is made and copied to the target storage system.

• For maximum flexibility, you can run a data replication task in two directions: one system can be both a source and a destination at the same time, allowing cross data backups on several systems. Replication can be used for disaster recovery or disk-to-disk backup.


Sync

hron

ous

Asyn

chro

nous

w/ S

yste

m

LAN

WAN

File

base

d

Bloc

k bas

ed

NAS

iSCSI

FC

File-

IO

Bloc

k-IO

Asynchronous Data (File) Replication within the system






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REPLICATION BETWEEN TWO RAID ARRAYS WITHIN ONE SYSTEM

Recommended Resources • Key Hardware

x86 compatible RAID Controller 1 RAID Controller 2 HDD‘s Network Interface Cards

• Software Open-E DSS

Benefits • Data redundancy over RAID Array • Local data availability • Low cost solution

Disadvantages • In case of complete system failure data will be lost or inaccessible

Asynchronous Data (File) Replication within the System



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Data (file) Replication

• Data is written and read on Array 1 • Data is periodically replicated to Array 2

RAID Array 2 Secondary

RAID Array 1 Primary

Write Data

Read Data




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RAID Array 1 Primary

• In the case of a raid array or disk drive error on Raid Array 1, the server will send an e-mail notification to the administrator and/or users

• The administrator then switches from Array 1 to Array 2

X X X




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• After switching, replicated data is available on Array 2

Write Data

Read Data


RAID Array 1 Primary X

X X




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REPLICATION BETWEEN TWO SYSTEMS WITHIN A SINGLE LAN

Recommended Resources • Key Hardware (two systems)

x86 compatible RAID Controller HDD‘s Network Interface Cards

• Software Open-E DSS, 2 units

Benefits • Data Redundancy over a LAN • Local data availability

Disadvantages • Natural disasters can destroy both machines • Higher cost of solution



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Data (File) Replication

• Data is written and read on System 1 • Data is periodically replicated from System 1 to System 2 over

the LAN

Write Data

Read Data

RAID System 1 Primary

RAID System 2 Secondary




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X

• In the case of a raid array or disk drive error on System 1 the system will send an e-mail notification to the administrator

• Administrator then switches users to System 2




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• After switching, replicated data is available on System 2

Write Data

Read Data



X




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REPLICATION BETWEEN TWO SYSTEMS OVER A WAN

Recommended Resources • Key Hardware (two system)

x86 compatible RAID Controller HDD‘s Network Interface Cards

• Software: Open-E DSS, 2 units

Benefits • Data redundancy • Maximum data safety

Disadvantages • Higher cost of WAN solution



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• Data is written and read on System 1 • Data is periodically replicated to System 2 via an Internet connection

Write Data

Read Data




Data (File) Replication



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• In the event of a raid array or disk drive error on System 1, the server will send an e-mail notification to the administrator,

• In the event of a loss of system 1 users will be notified • Administrator then switches users to System 2 over the WAN.

X RAID System 1 Primary





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Read Data

• After switching, replicated data is available on System 2

Write Data

X




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Volume Replications



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Volume Replication (synchronous) over LAN or WAN is block based and supports iSCSI, FC and NAS logical volumes. It provides data availability in case the source system is offline due to a disaster. The destination system will have the replicated data from the source server.


Sync

hron

ous

Asyn

chro

nous

w/ S

yste

m

LAN

WAN

File

base

d

Bloc

k bas

ed

NAS

iSCSI

FC

File-

IO

Bloc

k-IO





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REPLICATION BETWEEN TWO SYSTEMS WITHIN ONE LAN


x86 compatible, RAID Controller, HDD‘s, Network Interface Cards.

• Software Open-E DSS, 2 units.

Benefits • Data Redundancy over a LAN, • Enables continuous data access.

Disadvantages • Higher cost of solution, • Natural disasters can destroy both local systems.



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Volume Replication

• Data is written and read on System 1 • Data is continiously replicated to System 2

Write Data

Read Data






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X

• In the case of a raid array or disk drive error on the System 1, the server will send an e-mail notification to the administrator,

• In the case of a failure of system 1, users will be notified • Administrator then switches users to the System 2.






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• After switching, replicated volume is available on System 2

Write Data

Read Data



X




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REPLICATION BETWEEN TWO SYSTEMS OVER A WAN


x86 compatible, RAID Controller, HDD‘s, Network Interface Cards.

• Software Open-E DSS, 2 units.

Benefits • Data redundancy • Maximum data safety

Disadvantages • Higher cost of WAN solution



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Volume Replication

• Data is written and read on System 1 • Data is replicated to System 2 via an Internet connection

Write Data

Read Data






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X

• In the case of a raid array or disk drive error on System 1, the server will send an e-mail notification to the administrator,

• In the case of a failure of system 1, users will be notified, • Administrator then switches users to the System 2 over the WAN.






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• After switching, replicated volume is available on System 2

Write Data

Read Data



X




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replications supported by open-e software

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